HtmlPrinter page Problem in C#.net, dot matrix printer

Question

Hi,
I using HtmlPrinter to print the bill in my application as,

HtmlPrinter.HtmlPrinter hpObj = new HtmlPrinter.HtmlPrinter();

                hpObj.PrintHtml(strvalue, true);

no other setting have been configured for it..
While previewing the print document it's looking like normal form tat what i hav designed in it..
but when i'm printing in dot matrix printer,the page contains some anonymous data's such as..
dhtml led0,page 1 of 1 and current date in every page.This makes the single bill to print on multiple pages.
Hope somebody helps asap.!!!!!
Thanks in Advance..!!!